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KMID : 0352720090330020139
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Journal of Ginseng Research
2009 Volume.33 No. 2 p.139 ~ p.142
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Effect of Calcium Cyanamide Soil Fumigation on Sterilization of Rhizoctonia solani, Pythium sp., Soil Microbes and Plant Seed
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Lee Byung-Dae
Park Hoon
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Abstract
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The effect of calcium cyanamide (China-made) soil fumigation on the growth of the ginseng pathogen (Rhizoctonia, Pythium), soil microbes, and seed germination of lettuce and radish was investigated. At twice the recommended level (250-ppm CaCN₂), the growth of Rhizoctonia and Pythium, and the seed germination, were not inhibited. Rather, the effective level was 10,000 ppm. The powder form was more effective than the granular form in inhibiting pathogen growth and seed germination. The lettuce seed was also more sensitive than the radish seed. Calcium cyanamide appearedto decrease the fungi population and to increase Actinomycetes in the soil.
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KEYWORD
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calcium cyanamide, pythium, rhizoctonia, fumigation
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